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programming languages Online Quiz - 311

Description: programming languages Online Quiz - 311
Number of Questions: 20
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Tags: programming languages
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Which of the following is used to check whether the Caps lock in keyboard is turned on or Not By using VB.Net 2005?

  1. If My.Computer.Keyboard.CapsLock = True Then

  2. If System.Computer.Keyboard.CapsLock = True Then

  3. Both A and B

  4. None of the Above


Correct Option: A

What is the significance of the option explicit statement when it is set to ON

  1. Specifies that any variable name is declared (with type) before use

  2. Specifies whether String should be compared as binary

  3. Specifies that variables should be intialized before use

  4. All of the above


Correct Option: A

Which of the following happens when the FormBorderStyle property is set to None in VB.NET?

  1. borderless form is made

  2. The form cannot be moved

  3. Both A and B

  4. None of the Above


Correct Option: C

Which of the following namespace provides classes that can be used to create and manipulate custom performance counters?

  1. System.NET.DNS

  2. System.Data.Common

  3. System.Diagnostics namespace

  4. none of the above


Correct Option: C

The concept in VB.NET by which one can provide a new implementation for the base class member without overriding the member is called as

  1. Shadowing

  2. Late Binding

  3. .NET Reflection

  4. All of the above


Correct Option: A

How many fields are maintained by the runtime by each instance of a reference type?

  1. One Field

  2. Two Fields

  3. Three Fields

  4. Four fields


Correct Option: B

True or False: You don’t need to specify a default value for an optional parameter

  1. True

  2. False


Correct Option: B

Which of the following is the correct syntax for suggesting that the JVM performs garbage collection?

  1. System.free()

  2. System.setGarbageCollection()

  3. System.setGarbageCollector()

  4. System.gc()


Correct Option: D

TreeMap class is used to implement which collection interface. Select the one correct answer

  1. SortedMap

  2. Tree

  3. Set

  4. SortedSet


Correct Option: A

Which of the following are Java key words

  1. double

  2. Switch

  3. then

  4. instanceof


Correct Option: A,D

Which of the following will compile correctly

  1. short myshort = 99S;

  2. String name = 'Excellent tutorial Mr Green';

  3. char c = 17c;

  4. int z = 015;


Correct Option: D

Which one does not extend java.lang.Number?

  1. integer

  2. boolean

  3. character

  4. short


Correct Option: B,C

Which option most fully describes will happen when you attempt to compile and run the following code public class MyAr{ public static void main(String argv[]) { MyAr m = new MyAr(); m.amethod(); } public void amethod(){ static int i; System.out.println(i); } }

  1. Compilation and output of the value 0

  2. Compile time error because i has not been initialized

  3. Compilation and output of null

  4. Compile time error


Correct Option: D

Why might you define a method as native?

  1. to get to access hardware that Java does not know about

  2. to define a new data type such as an unsigned integer

  3. to write optimised code for performance in a language such as C/C++

  4. to overcome the limitation of the private scope of the method


Correct Option: A,C

Which one does not have a ValueOf(String) method?

  1. integer

  2. boolean

  3. character

  4. long


Correct Option: C

Which of the following are Java modifiers?

  1. public

  2. private

  3. friendly

  4. transient


Correct Option: A,B,D

What gets printed when the following program is compiled and run. Select the one correct answer. class test { public static void main(String args[]) { int i,j,k,l=0; k = l++; j = ++k; i = j++; System.out.println(i); } }

  1. 0

  2. 1

  3. 2

  4. 3


Correct Option: B

If DISP=(,CATLG) which is the correct one?

  1. DISP=NEW,CATLG,CATLG

  2. DISP=OLD,DELETE,CATLG

  3. DISP=NEW,CATLG,DELETE

  4. DISP=OLD,CATLG,CATLG


Correct Option: A

STEP1 EXEC PGM=P1 STEP2 EXEC PGM=P2,COND=EVEN STEP3 EXEC PGM=P3,COND=((8,LE,STEP1),ONLY) If the condition code of the step1 is 4 and the step2 was abended then which statement is correct.

  1. step1, step2 and step3 will execute

  2. only step1 and step3 will execute

  3. only step1 and step2 will execute

  4. only step1 will execute


Correct Option: A

What is the maximum number of DD stmt a step can have?

  1. 100

  2. 15

  3. 300

  4. 255


Correct Option: D
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